Can OLMo 2 13B run on RX 7800 XT 16GB?

YES — Runs Great

A82Great

Estimated from fit model

OLMo 2 13B needs ~12.9 GB VRAM. RX 7800 XT 16GB has 16.0 GB. With Q4_K_M quantization, expect ~53 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: MediumStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 12.9 GB, 52.7 tok/s, Runs well

12.9 GB required16.0 GB available

81% VRAM used

Fit status

Runs well

Decode

52.7 tok/s

TTFT

3674 ms

Safe context

33K

Memory

12.9 GB / 16.0 GB

Memory breakdown

Weights7.9 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom1.6 GB

See how fast it feels

See how fast it feelsOLMo 2 13B on RX 7800 XT 16GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
  - Full privacy: your prompts never leave your machine
  - No per-token cost or rate limits
  - Works offline once the model is downloaded
  - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

  Model size     Q4 (4-bit)    Q8 (8-bit)    FP16
  7B params      ~4.3 GB       ~7.5 GB       ~14 GB
  13B params     ~7.9 GB       ~13.9 GB      ~26 GB
  70B params     ~42.7 GB      ~74.9 GB      ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 52.7 tok/s decode · 3.7s TTFT (warm) · 132 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs well	52.7 tok/s	2004 ms	33K
Coding	A	Runs well	52.7 tok/s	3674 ms	33K
Agentic Coding	A	Runs with offload	52.7 tok/s	5344 ms	33K
Reasoning	A	Runs well	52.7 tok/s	4342 ms	33K
RAG	A	Runs with offload	52.7 tok/s	6681 ms	33K

Quantization options

How OLMo 2 13B (13B params) fits at each quantization level on RX 7800 XT 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.1 GB	Low	A76
Q3_K_S	3	6.4 GB	Low	A77
NVFP4	4	7.3 GB	Medium	A78
Q4_K_M	4	7.9 GB	Medium	A79
Q5_K_M	5	9.4 GB	High	A78
Q6_KBest for your GPU	6	10.7 GB	High	A78
Q8_0	8	13.9 GB	Very High	F0
F16	16	26.7 GB	Maximum	F0

Get started

Copy-paste commands to run OLMo 2 13B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "allenai/OLMo-2-13B-Instruct" \
  --hf-file "OLMo-2-13B-Instruct-Q4_K_M.gguf" \
  -c 4096 -ngl 99

Your hardware

More models your RX 7800 XT 16GB can run

Model	Params	Grade	Decode
Qwen 3 14B	14B	S	48.9 tok/s
Phi-4-reasoning-plus 14B	14.7B	S	46.4 tok/s
GPT-OSS 20B	21B	A	44.8 tok/s
Ministral 3 14B	14B	S	48.7 tok/s
Codestral 2 25.08	22B	A	16.4 tok/s

Frequently asked questions

Can RX 7800 XT 16GB run OLMo 2 13B?

Yes, RX 7800 XT 16GB can run OLMo 2 13B with a A grade (Runs well). Expected decode speed: 52.7 tok/s.

How much VRAM does OLMo 2 13B need?

OLMo 2 13B (13B parameters) requires approximately 12.9 GB of memory with Q4_K_M quantization.

What is the best quantization for OLMo 2 13B?

The recommended quantization for OLMo 2 13B is Q4_K_M, which balances quality and memory efficiency.

What speed will OLMo 2 13B run at on RX 7800 XT 16GB?

On RX 7800 XT 16GB, OLMo 2 13B achieves approximately 52.7 tokens per second decode speed with a time-to-first-token of 3674ms using Q4_K_M quantization.

Can RX 7800 XT 16GB run OLMo 2 13B for coding?

For coding workloads, OLMo 2 13B on RX 7800 XT 16GB receives a A grade with 52.7 tok/s and 33K context.

What context window can OLMo 2 13B use on RX 7800 XT 16GB?

On RX 7800 XT 16GB, OLMo 2 13B can safely use up to 33K tokens of context. The model's official context limit is 33K, but available memory constrains the safe maximum.

See all results for RX 7800 XT 16GB See all hardware for OLMo 2 13B

Embed this result▼

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<iframe src="https://willitrunai.com/embed/olmo-2-13b-on-rx-7800-xt-16gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

52.7 tok/s

2004 ms

33K

Coding

Runs well

52.7 tok/s

3674 ms

33K

Agentic Coding

Runs with offload

52.7 tok/s

5344 ms

33K

Reasoning

Runs well

52.7 tok/s

4342 ms

33K

RAG

Runs with offload

52.7 tok/s

6681 ms

33K

Quant

Bits

VRAM

Quality

Fit

Q2_K

5.1 GB

Low

A76

Q3_K_S

6.4 GB

Low

A77

NVFP4

7.3 GB

Medium

A78

Q4_K_M

7.9 GB

Medium

A79

Q5_K_M

9.4 GB

High

A78

Q6_KBest for your GPU

10.7 GB

High

A78

Q8_0

13.9 GB

Very High

F16

26.7 GB

Maximum

Model

Params

Grade

Decode

Capabilities

Qwen 3 14B

14B

48.9 tok/s

Phi-4-reasoning-plus 14B

14.7B

46.4 tok/s

GPT-OSS 20B

21B

44.8 tok/s

Ministral 3 14B

14B

48.7 tok/s

Codestral 2 25.08

22B

16.4 tok/s

Frequently asked questions

Can RX 7800 XT 16GB run OLMo 2 13B?

Yes, RX 7800 XT 16GB can run OLMo 2 13B with a A grade (Runs well). Expected decode speed: 52.7 tok/s.

How much VRAM does OLMo 2 13B need?

OLMo 2 13B (13B parameters) requires approximately 12.9 GB of memory with Q4_K_M quantization.

What is the best quantization for OLMo 2 13B?

The recommended quantization for OLMo 2 13B is Q4_K_M, which balances quality and memory efficiency.

What speed will OLMo 2 13B run at on RX 7800 XT 16GB?

On RX 7800 XT 16GB, OLMo 2 13B achieves approximately 52.7 tokens per second decode speed with a time-to-first-token of 3674ms using Q4_K_M quantization.

Can RX 7800 XT 16GB run OLMo 2 13B for coding?

For coding workloads, OLMo 2 13B on RX 7800 XT 16GB receives a A grade with 52.7 tok/s and 33K context.

What context window can OLMo 2 13B use on RX 7800 XT 16GB?

On RX 7800 XT 16GB, OLMo 2 13B can safely use up to 33K tokens of context. The model's official context limit is 33K, but available memory constrains the safe maximum.